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Issue 19, 1993
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Luminescent gold(I) acetylide complexes. Photophysical and photoredox properties and crystal structure of [{Au(C[triple bond, length half m-dash]CPh)}2(µ-Ph2PCH2CH2PPh2)]

Abstract

The spectroscopic and photophysical properties of three gold(I)-acetylide complexes [N(PPh3)2]-[Au(C[triple bond, length half m-dash]CPh)2], [Au(PPh3)(C[triple bond, length half m-dash]CPh)] and [{Au(C[triple bond, length half m-dash]CPh)}2(µ-dppe)][dppe = 1,2-bis(diphenyl-phosphino)ethane] are described. X-Ray crystal analysis of the latter showed a weak metal–metal interaction in the solid state with the shortest Au ⋯ Au separation being 3.153(2)Å. The gold(I)–acetylide complexes have long-lived and emissive 3(π,π*) excited states in solutions at room temperature. The photoreaction of [Au(PPh3)(C[triple bond, length half m-dash]CPh)] with methyl viologen has been investigated by Stern–Volmer quenching and flash-photolysis experiments.

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Article information


J. Chem. Soc., Dalton Trans., 1993, 2929-2932
Article type
Paper

Luminescent gold(I) acetylide complexes. Photophysical and photoredox properties and crystal structure of [{Au(C[triple bond, length half m-dash]CPh)}2(µ-Ph2PCH2CH2PPh2)]

D. Li, X. Hong, C. Che, W. Lo and S. Peng, J. Chem. Soc., Dalton Trans., 1993, 2929
DOI: 10.1039/DT9930002929

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